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Title:
【発明の名称】一体形ねじり振動ダンパリテーナプレートの製造方法
Document Type and Number:
Japanese Patent JP2002524264
Kind Code:
A
Abstract:
A method for manufacturing a drive plate or one-piece torsional vibration damper retainer plate (20) for a torque converter (26) is disclosed. The retainer plate includes an annular periphery (36) curled into a generally C-shaped channel (46) for retaining at least one spring (56). The method includes the following steps. First, the retainer plate (20) is stamped primarily to form a central plate segment (34), an annular periphery (36), and a hub opening (44). Next, the annular periphery of the retainer plate is pre-curled. The plate is then heat treated to enhanced the physical properties of the retainer plate. The spring is disposed within the pre-curled annular periphery. Finally, the annular periphery of the retainer plate is completely curled into the generally C-shaped channel to substantially surround the spring thereby preventing the spring from being removed from the C-shaped channel of the retainer plate during operation of the retainer plate.

Inventors:
レッドモンド ダニエル ダブリュー
ロス ウィリアム
Application Number:
JP2000569944A
Publication Date:
August 06, 2002
Filing Date:
September 15, 1999
Export Citation:
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Assignee:
テスマ インターナショナル オブ アメリカ インコーポレイテッド
International Classes:
F16F15/123; B21D19/12; B21D35/00; B21D53/84; F16H45/02; (IPC1-7): B21D19/12; B21D35/00; F16F15/123
Domestic Patent References:
JPH1078106A1998-03-24
JPH0332428A1991-02-13
JPH05185175A1993-07-27
JPH09236173A1997-09-09
JPH09159006A1997-06-17
JPH08318325A1996-12-03
Attorney, Agent or Firm:
中村 稔 (外9名)